Tomas Koulter (ing. Thomas Coulter; 28 sentyabr 1793[1][2] – 28 noyabr 1843[1]) — İrlandiya botaniki.
- Frederick V. Coville. The Botanical Explorations of Thomas Coulter in Mexico and California. Botanical Gazette, Vol. 20, No. 12 (Dec., 1895), pp. 519–531
- Hadfield, Miles, et al. 1980. British gardeners. A biographical dictionary. London: A. Zwemmer in association with The Condé Nast Publications.
- E. Charles Nelson & Alan Probert. A Man Who Can Speak Of Plants / Dr Thomas Coulter of Dundalk in Ireland, Mexico and Alta California. Privately published by E. Charles Nelson, Dublin, 1994. ISBN 0-9524847-0-6
- Desmond, Ray. 1994. Dictionary of British and Irish botanists and horticulturists including plant collectors, flower painters and garden designers. New edition, revised and completely updated with the assistance of Christine Ellwood. London: Taylor & Francis and the Natural History Museum. Bristol, Pa.: Taylor & Francis.
- Joseph Ewan. A Man Who Can Speak of Plants: Dr Thomas Coulter (1793—1843) of Dundalk in Ireland, Mexico & Alta California by E. Charles Nelson; Alan Probert. Taxon, Vol. 44, No. 2 (May, 1995), pp. 289–290